EP 2882084 A3 20150729 - System, apparatus, and method for a ping-pong charge pump
Title (en)
System, apparatus, and method for a ping-pong charge pump
Title (de)
System, Vorrichtung und Verfahren für eine Pingpongladepumpe
Title (fr)
Système, appareil et procédé de pompe de charge ping-pong
Publication
Application
Priority
- US 201361911815 P 20131204
- US 201314139257 A 20131223
Abstract (en)
[origin: EP2882084A2] Systems, apparatuses, and methods provided for ping-pong charge pumps. Flying capacitors present in ping-pong charge pumps are operated out of phase to increase equalization periods. Out-of-phase operation also decreases voltage differences between flying capacitors during equalization periods thus decreasing ping-pong charge pump output voltage ripple and snapback. The voltages of the flying capacitors may be equalized without the use of an equalization switch. Differential control currents that are based on the voltage difference between the flying capacitors are used to enable or disable the flying capacitors from driving an output load of the ping-pong charge pump during certain phases of operation. A capacitor with a lower voltage may be disabled, thus providing for voltage equalization as the enabled capacitor sources current to the output load. The flying capacitors are also equalized during overlapping time periods in which the flying capacitors are charging.
IPC 8 full level
H02M 3/07 (2006.01)
CPC (source: EP US)
H02M 1/14 (2013.01 - US); H02M 3/07 (2013.01 - EP US); H02M 3/077 (2021.05 - EP US)
Citation (search report)
- [I] WO 2013101718 A1 20130704 - INTEL CORP [US], et al
- [I] US 2013249506 A1 20130926 - LIN CHIA-LIANG [US]
- [I] US 2008054990 A1 20080306 - SHIEH HAU-TAI [TW], et al
- [I] US 2003090252 A1 20030515 - HAZUCHA PETER [US]
- [A] US 2011050326 A1 20110303 - COOK THOMAS D [US], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2882084 A2 20150610; EP 2882084 A3 20150729; EP 2882084 B1 20190227; US 2015155771 A1 20150604; US 9564794 B2 20170207
DOCDB simple family (application)
EP 14004098 A 20141204; US 201314139257 A 20131223